What color is blue?

It is one of the three primary colors of red, green and blue light. Among these three primary colors, its wavelength is the shortest, 440~475n nanometers, which is a short wavelength. In the color code, the network code is #0000FF, and the RGB red, green, and blue light system is red 0 green 0 blue 255. The CMYK four-color printing system is cyan C100, magenta M100, yellow Y0, and black K0. The HSV system is 240 for primary color, 100 for saturation, and 100 for brightness. Extended information

1. Meaning

Blue is very pure and usually reminds people of the ocean, sky, water and universe. Pure blue shows a kind of beauty, calmness, reason, tranquility and vastness.

Due to the calm characteristics of blue, it has a rational and accurate image. In commercial design, most products or corporate images that emphasize technology and efficiency use blue as the standard color and corporate color, such as computers, Cars, photocopiers, photographic equipment, and more.

In addition, blue also represents melancholy, which is influenced by Western culture. This image is also used in literary works or commercial designs with emotional appeals.

2. Sky Blue

Sky blue pigments are generally sold in tubes and paint blocks, and there are also pigment powders. Traditional Chinese painting pigments are generally divided into two categories: mineral pigments and plant pigments. Historically speaking, minerals should come first and then plants, just like when using ink, there should be pine smoke first and oil smoke later.

The bright colors left on the ancient rock paintings were found to be made from mineral pigments (such as cinnabar). The remarkable characteristics of mineral pigments are that they are not easy to fade and are brightly colored. Plant pigments are mainly extracted from trees and flowers. Sky blue is a modern chemical pigment.

Baidu Encyclopedia - Sky Blue

Baidu Encyclopedia - Blue